G1085-XX Global Mixed-mode Technology Inc. 3A Low-Dropout Linear Regulator Features General Description The G1085-XX is a low dropout linear regulator with a dropout of 0.8V at 3A of load current. It is available in three fixed voltages: 1.5V, 1.8V, 2.5V and 3.3V. Refer to the G1085 for the adjustable version. Available in 1.5V, 1.8V, 2.5V, 3.3V version TO-220, TO-263 package Internal short circuit current limiting Internal over temperature protection Output current 3A The G1085-XX provides over temperature and over current protection circuits to prevent it from being damaged by abnormal operating conditions. Applications Post regulation for switching DC/DC converter High efficiency linear regulator Battery powered instrumentation Motherboard The G1085-XX is available in TO-220 and TO-263 packages. A minimum of 220µF tantalum electrolytic capacitor is required at the output to improve the transient response and stability. Ordering Information ORDER NUMBER ORDER NUMBER MARKING (Pb free) TEMP. RANGE PACKAGE PIN OPTION 2 3 1 G1085-15T33T G1085-15T33Tf G1085-15 -40°C to +85°C TO-220 GND VOUT VIN G1085-18T33T G1085-25T33T G1085-18T33Tf G1085-25T33Tf G1085-18 G1085-25 -40°C to +85°C -40°C to +85°C TO-220 TO-220 GND GND VOUT VOUT VIN VIN G1085-33T33T G1085-15T53U G1085-33T33Tf G1085-15T53Uf G1085-33 G1085-15 -40°C to +85°C -40°C to +85°C TO-220 TO-263 GND GND VOUT VOUT VIN VIN G1085-18T53U G1085-18T53Uf G1085-18 -40°C to +85°C TO-263 GND VOUT VIN G1085-25T53U G1085-33T53U G1085-25T53Uf G1085-33T53Uf G1085-25 G1085-33 -40°C to +85°C -40°C to +85°C TO-263 TO-263 GND GND VOUT VOUT VIN VIN * For other package types and pin options, please contact us at sales @gmt.com.tw Order Number Identification GXXXX-XX XX X X Packing Type Pin Option Package Type Voltage Part Number PACKAGE TYPE PIN OPTION T3: TO-220 T5: TO-263 1 GND 3: Package Type 2 VOUT PACKING 3 VIN U: Tape & Reel T: Tube Typical Application [Note 4]: Type of COUT G1085-XX V IN Top View 1 2 3 Top View 1 2 V OUT GND C1 220µF TO-220 V OUT V IN IO C OUT 220µF 3 TO-263 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Preliminary Nov 12, 2004 1 Global Mixed-mode Technology Inc. Absolute Maximum Ratings (Note 1) Input Voltage…………………….………….…………8V Power Dissipation Internally Limited (Note 2) Maximum Junction Temperature……..…..……..150°C Storage Temperature Range.……-65°C ≤ TJ ≤+150°C Reflow Temperature (soldering, 10sec).……….260°C Thermal Resistance Junction to Ambient TO-220(1), TO-263(1)………………………….…92°C/W Thermal Resistance Junction to Case TO-220,TO-263……..……………………………6°C/W ESD Rating (Human Body Model)………...………2kV G1085-XX Operating Conditions (Note 1) Input Voltage……….……………………………2.2V~7V Temperature Range…………….….-40°C ≤ TA ≤85°C Note (1): See Recommended Minimum Footprint Electrical Characteristics VIN = 5V, CIN = COUT = 220µF, TA = TJ = 25°C unless otherwise specified. (Note3) PARAMETER CONDITION MIN Output Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Short Circuit Current 10mA < IOUT < 3A (VOUT + 0.7V) < VIN < 5.5V, IOUT = 10mA G1085-18 VIN=3.8V, 10mA < IOUT < 3A G1085-25 VIN=5V, 10mA < IOUT < 3A G1085-33 VIN=5V, 10mA < IOUT < 3A G1085-18 ∆VOUT = 2%, IOUT = 3A G1085-25 ∆VOUT = 2%, IOUT = 3A G1085-33 ∆VOUT = 2%, IOUT = 3A (VIN - VOUT) = 2V G1085-18 VIN = 5V G1085-25 VIN = 5V G1085-33 VIN = 5V f = 120Hz, COUT = 10µF Tantalum, Ripple Rejection (VIN - VOUT) = 3V, IOUT = 1A Thermal Resistor Junction-to-Ambient TO-220; Recommended Minimum Footprint (No heat sink; No air flow) TO-263; Recommended Minimum Footprint TO-220 Thermal Resistance Junction-to-Case TO-263 Thermal Shutdown Junction Temperature Quiescent Current TYP MAX UNIT -2% --- VO 0.1 2% 1 V % --- 1 2 % ----------0.5 0.5 0.5 1 0.8 0.65 5.5 1 1.7 2.1 2.4 1.2 1 0.85 ----5 5 5 --- 50 --- ----------- 92 92 6 6 150 ----------- V A A mA dB °C/W °C/W °C Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics. Note2: The maximum power dissipation is a function of the maximum junction temperature, TJmax ; total thermal resistance, θJA, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is Tjmax-TA / θJA. If this dissipation is exceeded, the die temperature will rise above 150°C and IC will go into thermal shutdown. Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible. Note4: The type of output capacitor should be tantalum or aluminum. Definitions Load Regulation Dropout Voltage The input/output Voltage differential at which the regulator output no longer maintains regulation against further reductions in input voltage. Measured when the output drops 2% below its nominal value. Dropout voltage is affected by junction temperature, load current and minimum input supply requirements. The change in output voltage for a change in load current at constant chip temperature. The measurement is made under conditions of low dissipation or by using pulse techniques such that average chip temperature is not significantly affected. Maximum Power Dissipation The maximum total device dissipation for which the regulator will operate within specifications. Line Regulation The change in output voltage for a change in input voltage. The measurement is made under conditions of low dissipation or by using pulse techniques such that average chip temperature is not significantly affected. Quiescent Bias Current Current which is used to operate the regulator chip and is not delivered to the load. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Preliminary Nov 12, 2004 2 G1085-XX Global Mixed-mode Technology Inc. Electrical Characteristics VIN-VOUT = 3V, CIN = 220µF, COUT = 220µF, TA=25°C, unless otherwise noted. Line Transient Response Load Transient Response Short Circuit Current Ripple Rejection 70 Ripple Rejection (dB) 60 IL=1A 50 40 IL=2A 30 IL=3A 20 10 0 10 100 1000 10000 100000 1000000 Frequency (Hz) G1085-33 Overcurrent Protection Characteristics G1085-33 Start-up TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Preliminary Nov 12, 2004 3 G1085-XX Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) G1085-18 Overcurrent Protection Characteristics G1085-18-Start-up G1085 Max. Power Dissipation vs. TAMB 4.5 4.5 4 4 Max. Dissipation Power (W) Max. Dissipation Power (W) G1085 Max. Power Dissipation vs. PCB Top Copper Area 3.5 3 2.5 2 1.5 1 Unit : in2 A=0.5 A=1.0 3.5 A=1.5 3 A=2.0 2.5 A=2.5 2 A=3.0 1.5 A=3.5 A=4.0 1 A=4.5 0.5 0.5 0 0 0.5 1.5 2.5 3.5 PCB Top Copper Area (in2) 4.5 A=5.0 25 35 45 55 65 TAMB (°C) 75 85 G1085-18 Dropout Voltage vs. IL G1085-18 Quiescent Current vs. Temperature 2.0 3.0 1.8 1.6 2.5 Dropout Voltage (V) Quiescent Current (mA) IL=10mA 2.0 1.5 VIN=4V 1.4 1.2 1.0 0.8 0.6 TA=85°C 0.4 VIN=5V TA=-25°C 0.2 1.0 TA=25°C 0.0 -25 -15 -5 5 15 25 35 45 55 65 75 85 Temperature (°C) 1 1.5 2 IL (A) 2.5 3 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Preliminary Nov 12, 2004 4 G1085-XX Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) G1085-18 Output Voltage vs. Temperature G1085-18 Output Voltage vs. IL 1.825 1.824 IL=10mA 1.814 Output Voltage (V) Output Voltage (V) 1.820 1.815 1.810 IL=5A IL=4A 1.805 1.804 1.794 VIN=4V VIN=5V 1.784 1.774 TA=25°C 1.764 1.800 5 15 25 35 45 55 Temperature (°C) 65 75 0 85 0.5 1 1.5 2 2.5 3 IL (A) G1085-33 Dropout Voltage vs.IL G1085-33 Quiescent Current vs. Temperature 4.0 1400 Dropout Voltage (mV) Quiescent Current (mA) 1200 3.5 VIN=6V 3.0 2.5 600 400 200 2.0 5 800 TA=85°C VIN=5V -25 -15 -5 1000 TA=-25°C TA=25°C 0 1.0 15 25 35 45 55 65 75 85 1.5 2.0 2.5 3.0 IL (A) Temperature (°C) G1085-33-Output Voltage vs. Temperature G1085-33 Output Voltage vs. IL 3.334 3.334 3.314 3.314 VIN=6V Output Voltage (V) Output Voltage (V) TA=25°C 3.294 3.274 VIN=5V 3.254 VIN=6V 3.294 3.274 VIN=5V 3.254 IL=200mA 3.234 3.234 -25 -5 15 35 55 75 0 Temperature (°C) 1 IL (A) 2 3 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Preliminary Nov 12, 2004 5 G1085-XX Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) G1085-25 Dropout Voltage vs.IL G1085-25 Quiescent Current vs. Temperature 1800 3.50 Dropout Voltage (mV) Quiescent Current (mA) 1600 3.00 2.50 2.00 VIN=6V VIN=5V 1.50 1400 1200 1000 800 600 TA=85°C 400 TA=25°C 200 TA=-25°C 0 1.00 -25 -15 -5 5 15 25 35 45 55 65 75 1 85 1.5 2 2.5 3 IL (A) Temperature (°C) G1085-25 Output Voltage vs. IL G1085-25 Output Voltage vs. Temperature 2.55 2.59 2.54 Output Voltage (V) Output Voltage (V) TA=25°C 2.53 2.57 2.55 2.53 2.51 VIN=5V VIN=4V 2.49 2.52 2.51 2.5 2.49 VIN=4V 2.48 VIN=5V 2.47 2.47 2.46 IL=10mA 2.45 2.45 -25 -5 15 35 55 0 75 0.5 1 1.5 2 2.5 3 IL (A) Temperature (°C) Recommend Minimum Footprint TO-263 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Preliminary Nov 12, 2004 6 G1085-XX Global Mixed-mode Technology Inc. Package Information E A E1 E1 DIA F d D D1 I L e C A1 b e1 b1 TO-220 (T3) Package SYMBOL MILLIMETER INCH MIN MAX MIN MAX A A1 4.318 2.46 4.826 2.72 0.170 0.097 0.190 0.107 b b1 C D D1 d 0.69 1.143 0.304 3.429 8.53 2.62 0.94 1.397 0.460 3.683 9.04 2.87 0.027 0.045 0.012 0.135 0.336 0.103 0.037 0.055 0.018 0.145 0.356 0.113 E 9.906 10.40 0.390 0.410 E1 DIA 4.953 3.708 5.22 3.962 0.195 0.146 0.206 0.156 e e1 F L I 2.29 4.83 1.143 13.589 3.56 2.79 5.33 1.397 14.351 4.06 0.090 0.190 0.045 0.535 0.140 0.110 0.210 0.055 0.565 0.16 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Preliminary Nov 12, 2004 7 G1085-XX Global Mixed-mode Technology Inc. A E A1 L3 D H C L1 L e L2 A2 e1 b b1 TO-263 (T5) Package SYMBOL A A1 A2 b b1 C D E e e1 H L L1 L2 L3 MILLIMETER INCH MIN MAX MIN MAX 4.30 1.22 2.45 0.69 1.22 0.36 8.64 9.70 2.29 4.83 14.60 4.70 1.20 2.24 4.70 1.32 2.69 0.94 1.40 0.56 9.652 10.54 2.79 5.33 15.78 5.84 1.778 2.84 0.169 0.048 0.104 0.027 0.048 0.014 0.340 0.382 0.090 0.190 0.575 0.185 0.047 0.088 0.185 0.055 0.106 0.037 0.055 0.022 0.380 0.415 0.110 0.210 0.625 0.230 0.070 0.111 1.40MAX 0.055MAX Taping Specification F eed D irectio n TO -2 63 P a ck ag e O rien tatio n PACKAGE Q’TY/REEL TO-220 ----- Q’TY/TUBE 50 ea TO-263 1,000 ea ----- GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Preliminary Nov 12, 2004 8